Report Summary

  • 89

    Performance

    Renders faster than
    90% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

Page Load Speed

5.4 sec in total

First Response

214 ms

Resources Loaded

3.7 sec

Page Rendered

1.5 sec

zipcodelookup.org screenshot

About Website

Welcome to zipcodelookup.org homepage info - get ready to check Zipcodelookup best content for United States right away, or after learning these important things about zipcodelookup.org

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Key Findings

We analyzed Zipcodelookup.org page load time and found that the first response time was 214 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

zipcodelookup.org performance score

89

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

79/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.069

96/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

zipcodelookup.org

214 ms

zipcodelookup.org

834 ms

style.min.css

18 ms

oxygen.css

21 ms

slick.css

26 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 79% of them (45 requests) were addressed to the original Zipcodelookup.org, 16% (9 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Zipcodelookup.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 87.1 kB (2%)

Content Size

5.1 MB

After Optimization

5.0 MB

In fact, the total size of Zipcodelookup.org main page is 5.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 78.4 kB

  • Original 96.5 kB
  • After minification 92.3 kB
  • After compression 18.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 78.4 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 7.3 kB

  • Original 5.0 MB
  • After minification 5.0 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Zipcodelookup images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 5 B

  • Original 3.1 kB
  • After minification 3.1 kB
  • After compression 3.0 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 1.4 kB

  • Original 38.2 kB
  • After minification 38.2 kB
  • After compression 36.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Zipcodelookup.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (22%)

Requests Now

45

After Optimization

35

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zipcodelookup. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zipcodelookup.org accessibility score

94

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zipcodelookup.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

zipcodelookup.org SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zipcodelookup.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Zipcodelookup.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Zipcodelookup. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: